Best 6-Blade Attachments for Weed Eater Trimmers
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A 6 blade weed eater attachment is a cutting head that replaces the string spool on a trimmer, with six blades that swing or fixed steel blades that cut weeds and light brush. Most of the listings in this group are for straight-shaft trimmers with a 1-inch (25.4 mm) or 20 mm arbor, so the first thing to check is the arbor size and the mounting kit on your own machine. The five listings below all describe a six-blade head or a kit that includes one, and each block uses only the facts printed on that listing.
Quick answer
- Check your trimmer’s arbor size and shaft type first. The listings in this group name 1-inch (25.4 mm) or 20 mm arbors, and several say they fit straight-shaft gas trimmers.
- Pick a kit when you want more than one blade type. The Xiweiqi and the two-pack listings include a 6-blade head plus a larger saw blade.
- Match the head to a named model when the listing does. The Trrisaun, Husqvarna 122L and DeWalt DCST922 listings each name a specific brush cutter.
- Wear eye and hand protection and keep the guard in place, as each listing describes for its own product.
How a 6-blade head differs from a string head
A string head uses a length of line that feeds out as the head spins. A six-blade head uses metal blades instead. The listings say the blades are steel or manganese steel, and they describe the cut as heavier than string. The Husqvarna and DeWalt listings describe the design as swinging blades that pivot independently and can swing back when they hit something hard. That swing is a useful detail for uneven ground, because it reduces the direct impact on the head. A string head does not do this.
The trade-off is weight and control. A metal head is heavier than a string spool, and it is designed for weeds, grass, and light brush rather than thick wood. The two-pack listing says its carbide-tipped saw blade is recommended for brush and weed cutting and not for cutting trees or wood, and that its steel heads are for regular clearing. Use the head for the job the listing describes.
What to check before you buy
Three things decide whether a head will fit your machine. The first is the arbor size. The Xiweiqi listing says its heads fit weed wacker models with a 1-inch (25.4 mm) or 20 mm arbor. The two-pack listing says it fits both 1-inch and 20 mm arbor sizes with included adapter rings and washers. The Husqvarna and DeWalt listings name a 1-inch (25.4 mm) arbor setup.
The second is the mounting kit. Each listing includes its own adapter parts, but the parts differ. The Xiweiqi kit includes two adapter kits with thrust washers in 6T and 10T sizes, rider plates, collar nuts, and wrenches. The Husqvarna and DeWalt listings include adapter plates, washers, fasteners, a hex key, and a screwdriver. Confirm the mounting order from the instructions before you tighten anything.
The third is the model number. The Trrisaun listing names the Milwaukee M18 FUEL QUIK-LOK brush cutter attachment 49-16-2738, and it tells the buyer to check the brush cutter model, shaft size and mounting method before purchase. The Husqvarna 122L and DeWalt DCST922 listings are written for those named tools. If your machine is a different brand or model, the listing may not fit.
Compared: five 6-blade attachments
The five listings below are arranged from the kit with the most included parts to the single head with the fewest. Each one describes a six-blade head or includes one.
Xiweiqi 3-in-1 Heavy Duty Brush Cutter Blades Kit
This is the most complete kit in the group. It includes a 6-blade steel trimmer head, a 9-inch 36-tooth carbide-tipped blade for thick brush, and a 10-inch 3-tooth carbon steel blade, along with two complete adapter kits. The listing says the adapter kits include thrust washers in 6T and 10T sizes, rider plates, collar nuts, and wrenches. It says the heads are made from manganese steel, and that the blades are impact-resistant and stay sharp longer. The listing says it is compatible with Stihl, Echo, Husqvarna, Ryobi, Craftsman and Dewalt 20V trimmer attachments, and it asks the buyer to wear full protective gear, including boots and long pants.
Trrisaun 6-Blade Trimmer Head for Milwaukee M18 FUEL QUIK-LOK
This listing is a replacement attachment for a specific tool, the Milwaukee M18 FUEL QUIK-LOK brush cutter attachment 49-16-2738. It describes six movable blades for a wider cutting area, a metal construction, and a 25.4 mm center hole. The listing says to confirm the required size before ordering. Its title says 150 mm, which describes the cutting diameter. The listing does not state a weight or a blade material beyond metal, so check the package before fitting it.
Generic 6-Blade Brush Cutter Head for Husqvarna 122L
This head is listed for the Husqvarna 122L and for compatible straight-shaft brush cutter assemblies with a 1-inch (25.4 mm) arbor. It has six swinging blades made from 65Mn steel and a 5.9-inch (150 mm) cutting size. The listing says the blades pivot independently and can swing backward when they contact something hard. It includes an arbor adapter kit with adapter plates, washers, fasteners, a hex key and a screwdriver. The listing asks the buyer to confirm the shaft size, rotation direction and mounting order before use.
Generic 6-Blade Brush Cutter Head for DeWalt DCST922
This is the same six-blade design as the Husqvarna 122L head, written for the DeWalt DCST922. The listing describes six swinging blades, 65Mn steel construction, a 5.9-inch (150 mm) cutting size, and a 1-inch (25.4 mm) arbor adapter kit with plates, washers, fasteners, a hex key and a screwdriver. It says the head is for yard cleanup, farm maintenance and outdoor trimming. Confirm the mounting order against the DCST922 before you install it.
2 Pack 6-Blade Steel Brush Cutter Head with 10-inch 80T Carbide Blade
This listing is a three-piece kit: two 6-blade steel cutting heads and one 10-inch 80-tooth carbide-tipped blade. It includes a universal adapter kit with rings and washers for both 1-inch (25.4 mm) and 20 mm arbors. The listing says the steel heads use hardened manganese steel and the carbide blade is for woody material. It says the blade is not for cutting trees or wood. The listing names compatibility with Stihl, Husqvarna, Echo, Shindaiwa, Redmax, Ryobi, Hitachi, Oregon and Homelite straight-shaft trimmers, and it asks the buyer to check the arbor size before ordering. The kit weighs 3.16 pounds according to its specifications.
Who each option suits
A buyer with a straight-shaft gas trimmer and no spare blades should look at the kits. The Xiweiqi listing covers the most parts, with a 6-blade head, a larger carbide-tipped brush blade and two adapter kits. The two-pack listing covers two 6-blade heads and a saw blade, with adapters for both 1-inch and 20 mm arbors. Both are better than a single head if you want a second head ready for the next job.
A buyer who owns one of the named brush cutters should look at the model-specific listings. The Husqvarna 122L and the DeWalt DCST922 heads are written for those tools, and the Trrisaun head is written for the Milwaukee M18 FUEL QUIK-LOK attachment. Those listings say to confirm the shaft size and the mounting order. If the model in the title is not yours, the listing is not the right part.
Safety and setup
Metal heads are sharper and heavier than string, so set the work up with the same care as any brush cutter. The Xiweiqi listing says to wear full protective gear, including boots and long pants, to guard against debris. The Husqvarna and DeWalt listings say to confirm rotation direction and mounting order before use. The two-pack listing says to check the trimmer’s arbor size before ordering. Keep the guard on the machine and keep bystanders at a distance while the head is spinning.
Before you fit a head, disconnect the power source or remove the battery, and follow the mounting steps in the instructions that come with the kit. A head that is tightened in the wrong order can loosen under load. The listings do not give a torque value, so use the instructions for the trimmer model rather than a guess.
Mistakes to avoid
- Skipping the arbor check. A 20 mm head will not fit a 1-inch shaft, and the reverse is also true. Check the shaft before you order.
- Cutting woody material with the wrong blade. The two-pack listing says its carbide-tipped blade is not for trees or wood, and the six-blade heads are for weeds, grass and light brush.
- Mixing up the mounting parts. The Xiweiqi kit includes 6T and 10T washers. Use the set that matches your trimmer’s spline count.
- Assuming a model-specific head fits another brand. The Trrisaun, Husqvarna 122L and DeWalt DCST922 listings are written for named tools.
- Running a damaged head. Bent or cracked blades should be replaced, not straightened, because a damaged head is unbalanced.
FAQ
Will a 6-blade head fit any weed eater?
No. The listings name arbor sizes and specific models. Most of these heads are for straight-shaft trimmers with a 1-inch (25.4 mm) or 20 mm arbor, and some are written for a named brush cutter. Check your shaft and the model list before you order.
Are the blades steel or carbide?
The six-blade heads in this group are steel, and the listings describe manganese or 65Mn steel. The Xiweiqi kit and the two-pack include a carbide-tipped saw blade in addition to the steel head.
What is the cutting size?
The Husqvarna 122L and DeWalt DCST922 listings state a 5.9-inch (150 mm) cutting size. The Trrisaun listing gives a 150 mm title size. The Xiweiqi and two-pack listings name the blade sizes of their saw blades rather than the full head size.
Do I need a separate adapter kit?
Each listing includes its own adapter parts. The Xiweiqi kit includes two complete adapter kits, the Husqvarna and DeWalt listings include a 1-inch arbor kit, and the two-pack includes rings and washers for both sizes.
Can I use a 6-blade head for cutting brush?
The listings describe light to medium brush, saplings and weeds. The Xiweiqi and two-pack listings include a larger carbide-tipped saw blade for thicker brush, but both say the saw blade is not for trees or wood.
What should I wear when I use one?
The Xiweiqi listing asks for full protective gear, including boots and long pants. Eye and hand protection are the usual minimum for any brush cutter, and the listings say to wear safety gear when operating.
Bottom line
For a 6 blade weed eater attachment, start with the arbor size and the model number on your trimmer. If you want the most parts, choose the Xiweiqi kit. If you want two heads and a saw blade for both arbor sizes, choose the two-pack. If you own one of the named brush cutters, choose the head written for that model. For more on choosing a trimmer, read Top 10 Battery Powered Weed Eaters: 6 Real Picks Compared and Best Gas Weed Eaters: 4-Cycle Models Compared.
